Data storage and compression
1.3What the syllabus asks of you
- Understand how data storage is measured
- Calculate the file size of an image file and a sound file, using information given
- Understand the purpose of and need for data compression
- Understand how files are compressed using lossy and lossless compression methods
Read the notes first
Chapter 1: Data storage and compression
Drill this topic
All 18 questions on Data storage and compression, untimed — answer on paper, then mark yourself against the mark scheme.
Make a worksheet
Choose the years and how many questions, then print it with the answers on separate pages.
18 questions
These are structured questions, answered in working rather than by picking an option, so they are not listed here one by one. The drill above puts each in front of you with its mark scheme to check against.